Drum used in the processing of hides and skins



Aug 17, i931 N. D. CLARKE 2,090,185

DRUM USED IN THE PROCESSING OF HIDES AND SKINS Filed Nov'. 27, 1955 v IIiIIIII MMM/nb. wmvbwm Patented Aug. 17, 1937 Y' UNITED STATES DRUM USED IN THE PROCESSING OF HIDS AND SKINS Norman Dwight Clarke, Barrie, Ontario, Canada, assignor to Clarke & Clarke Company, Limited, Barrie, Ontario, Canada Application November 27, 1936, Serial No. 113,068

4 Claims. (CL 149-11) `llThis invention relates to a drum Iused in the processing of hides and skins of the rotary type, and the features of the invention are in the method ofsecuring thel gudgeon plate, journal ..5- and driving gear on the exterior of the head of the drum. I y

It is the common practice to secure the gudgeon plate and gears on the head of the drum by fastening bolts, and having the heads of the bolts on the inside of the drum.

Where the gudgeon plate and gears are secured by this method and from the naturev of the liquid contents of the drum, there is a tendency of decay and wear of the wood around the bolt holes, and loosening of the fastenings, to

cause frequent repairs and adjustments.

Further, where bolts are used for fastenings, and the heads project from the inner face of the head of the drum, there is a tendency to scratch and abrade the soft face of the hides and skins when being tumbled about in the drum While being processed by the action of the rotation of the drum.

The object of the invention is to secure the gudgeon plate and gears to the exterior of the head of the drum without any of the fastenings passing through the drum head, and with fastening means adapted to rigidly secure the parts in position, and readily adjusted to tighten up, and centre accordingly with the natural shrinkage and expansion of the Wood itself caused by the variance in temperature and the nature of the liquid contents of the solutions used.

In the hereunto annexed drawing;-

Figure 1 is an end elevational View of the drum; and

Figure 2 is a detail sectional view on lines 2 2, Figure 1.

Like letters of reference refer to like parts 40 throughout the drawing.

45 standards C, as shown in dotted lines in Figure 1, of the drawing.

E, designates a gudgeon plate preferably round, and having centrally formed therewith is a bearing F, adapted to seat in a pillow-block 50 G, set on the standard C. Formed through the centre of the bearing F, is a bore H, into which a tubular connection may be tted to allow and force the liquids into the drum.

Formed on the outer face of the gudgeon plate 55 E, at regular intervals are a series of stay-blocks I, having a countersunk `centrally disposed pocket J, to receive the fastening nut K, on the end of, a tension rod L, which vextendsradially there-, from and out through the stave A, and keeper M,on thelouter kface of the stave, and secured by fastening and adjusting nuts N'and Y, the nut N, being on theouter. end. of the rod, and the nut Yengaging against the inner face ofthe stave. l

The keeper tted on the outer face and at each end of the stave A, is maintained in position by a tie rod O, on the ends of which are adjusting nuts P.

The tension rods L, of which there may be any plurality, accordingly with the size of the drum, extend out through a bore Q formed through the outer face of the block I, in radial relation to project through the outer periphery of the drum; by which the gudgeon plate El, may be centrally maintained against the head 0f the drum, so that adjustments may be made to centre and maintain rigidity by turning the nuts N and Y, on the outer ends of the rods L.

Mounted on and supported by the tension rods L, is an internal gear R, by which the drum is rotated by the engagement with a pinion gear and motive connection or any suitable power means.

The pinion gear and the motive means, I have not illustrated in mesh with the internal gear as it does not embody any feature of my invention. One of the essential features is the internal gear R, the method of mounting it on the tension rods L, and the means for maintaining and adjusting to a true centre.

Formed integral around the outer periphery of the internal gear R, at regular intervals to register with the radial disposition of the tension rods L, are ears S'. Bolted to the underside of the ears S, are stay-blocks T, having a central bore through which the tension rods L, pass to carry the internal gear R.

While I have shown as a part of the rotating mechanism, an internal gear R, mounted on the tension rods L, any other form of gearmay be equally adap-ted for the purpose. The internal gear may also be readily removed where other drive mechanisms are to be used.

V, designates an adjusting nut on the tension rod L, adapted to engage against the outer face of the stay-block T, to centrally adjust the internal gear R, and to retain it in position, rm and drum proper, that is extending into, or through the wooden structure of the head.

What I claim as new and desire to lehy Letters Patent is- 1. In a drum of the character specified, the combination with the head of the drum, a gudgeon plate and bearing formed therewith, a series of tension rods extending radially therefrom,- said rods projecting through the o'uter periphery of the said drum With fastening nuts on the ends thereof for maintaining and centrally adjusting the said gudgeon plate. y v f 2. In a drum of the character specified,`the combination with the head of the drum, a. gudgeon plate and bearing formed therewith, a series of stay blocks formed at regular intervals around the outer face of said gudgeon plate, a series of tension rods extending in radial relation from the said stay-blocks, the ends of said tension rods projecting through the outer periphery of said drum, keepers and fastening nuts tted on the ends of said rods, for maintaining and centrally adjusting the said gudgeon plate with the head of the drum.

3. In a drum of the, character specified, the combination with the head of the drum, a gudgeon plate and bearing formed therewith, a'series of stay blocks formed at regular intervals around the outer face of said gudgeon plate, a series of tension rods fitted into said stay blocks, said tension rods extending in radial relation from said stay blocks, the ends of said tension rods projecting through the outer periphery of said drum,

,Y combination with the head of the drum, a gudgeon plate and bearing formed therewith, a series of stay blocks formed at regular intervals around the outer face of said gudgeon plate, a series of tension. rods fitted into the said stay blocks and extending in radial relation therefrom, the ends of said tension rods projecting through the outer periphery of said drum, keepers and fastening nuts tted on the ends' of said rods for maintaining and centrally adjusting the said gudgeon plate with the exterior head of the drum, an` internal gear concentrically lmounted on said tension rods, stay lolocksl fitted with the said gear, said tension rods passing through said stay-blocks, adjusting nuts tted von said tension rods adjacent With the said stay-blocks for maintaining and centrally adjusting said internal gear.

NORMAN D. CLARKE. 

